McMaster-Carr

Also known as isolators or diaphragm seals, these protect gauges from corrosive process media. Fill guards with ISO Grade 32 hydraulic oil (not included) before use.

316 stainless steel guards provide excellent corrosion and chemical resistance and can handle higher temperatures and pressures than plastic guards.

Guards with drain port allow you to remove process media.

Pipe Connections
Inlet	Outlet	Gasket Material	For Use With	Min. Pressure, psi	Max. Pressure	Max. Temp., °F	Ht.		Each
316 Stainless Steel Body
1/4 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	1 1/2"	0000000	0000000
1/2 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	1 1/2"	0000000	000000
1/2 NPT Female	1/2 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	1 1/2"	0000000	000000
316 Stainless Steel Body with 1/4 NPT Female Drain Port
1/4 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	2"	0000000	000000
1/2 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	2"	0000000	000000
1/2 NPT Female	1/2 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	2"	0000000	000000

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